RAX: ffffffffffffffda RBX: 00007f89583b6090 RCX: 00007f895815f749 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f895639d090 R08: 0000000000000009 R09: 0000000000000000 R10: 0000200000000500 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f89583b6128 R14: 00007f89583b6090 R15: 00007ffff35c0ec8 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5937 at fs/udf/truncate.c:224 udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224 Modules linked in: CPU: 1 UID: 0 PID: 5937 Comm: syz.3.9 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224 Code: 10 6e 0e 48 3b 84 24 80 01 00 00 75 77 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 95 1d 8a fe 90 <0f> 0b 90 eb 88 44 89 e9 80 e1 07 38 c1 0f 8c e4 f3 ff ff 4c 89 ef RSP: 0018:ffffc900058df3a0 EFLAGS: 00010293 RAX: ffffffff83348fbb RBX: 1ffff1100bf970e9 RCX: ffff88802aae9e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900058df578 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a FS: 00007f895639d6c0(0000) GS:ffff888126ef6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000034748000 CR4: 00000000003526f0 Call Trace: udf_write_failed+0x18b/0x1c0 fs/udf/inode.c:178 udf_write_begin+0x214/0x270 fs/udf/inode.c:265 generic_perform_write+0x29d/0x8c0 mm/filemap.c:4254 udf_file_write_iter+0x2f4/0x6e0 fs/udf/file.c:111 iter_file_splice_write+0x97a/0x10f0 fs/splice.c:738 do_splice_from fs/splice.c:938 [inline] direct_splice_actor+0x104/0x160 fs/splice.c:1161 splice_direct_to_actor+0x5b3/0xcd0 fs/splice.c:1105 do_splice_direct_actor fs/splice.c:1204 [inline] do_splice_direct+0x187/0x270 fs/splice.c:1230 vfs_copy_file_range+0xb21/0x1390 fs/read_write.c:1632 __do_sys_copy_file_range fs/read_write.c:1681 [inline] __se_sys_copy_file_range+0x2fb/0x470 fs/read_write.c:1648 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f895815f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f895639d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007f89583b6090 RCX: 00007f895815f749 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f895639d090 R08: 0000000000000009 R09: 0000000000000000 R10: 0000200000000500 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f89583b6128 R14: 00007f89583b6090 R15: 00007ffff35c0ec8